Type-writing machine.



B. O. STIOKNEYL TYPE WRITING MACHINE. YAIfPLIUATION FILED JULY16,1902.

990,170. Patented Apr. 18, 1911.

PAT N oFF oE,

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- To all whom'it may comem: Be it known that I, BURNHAM C. Srronmay, a citizen of the United States, and resident of the city of Elizabeth, county of Union, and Stateof New Jersey, have in :vented certain new and useful" Improvements' in Type-VVriting Machines, ofwhich the followingis a specification.

' This invention relates to typewriting machines, especially those of the front strike variety; and its object is to'provide simple meansfor securing w1de.range of var atlon in the touch of the finger keys, and particul'arly to 'provide'a series of .connectin -rods of such a construction and having suc appurtenan'ces that they may either elongate or not when the keys are struck sharp blows, according to' the position to which the appurtenances are set by the operator.

- Myinvention consists in certain combinations of devices, features of construction,

7 and arrangements of parts, all as will be hereinafter particularly set forth, and pointed out in the concluding claims.

. In the accompanying drawings, igure 1 is avertical longitudinal section'of afront;

2'is a ske eton'view ofa type action shownat Fig. 1, the parts being in printing posi-' tion, and the partsadjustedfor a yielding touch. Fig. 3 is an enlarged pers ctive view of one of the idle links where y the elasticity of the type-bar actuating links'or devices may be controlled.

."InAZhe views similar parts are designated by similar cha'racters of reference. The machine frame comprises a base 1, j corner posts 2', and top plate 3.: Over the latter runs'the usual carriage (not shown) carrying a laten .4. A system of rearwardly striklng type bars 5 is carried in a w-the', top plate. The type bars, carry types 7,'rest"upon'a pad 8, and'a're ivoted at their rearends upona curve'd ulcrum wire 9 mounted-in the segment 6,.the hubs to'of'theftype 'in' radial slots 10 cut infth f'S t 'g -ll nt'.

se em; 6 at the frontof the platen andjbelt?) 's1on, wh1le to some ext operating devices comprise.

v -ing-;.the-key-leversan" connectedpartslgearxvardly. from and TYPE-WRITING mcnm'n,

g Specification of Letters Patent. I Patented Apr. 18,-1911..:[

- application and m 16, 1902. Serial No.'115,79 4.'

' connecting the type-bars to upwardly ex tending or upright arms 12 of a system of.,f5 bell cranks or. sub-levers A, whichmay'be" disposed in an arc-in rear of the type'bars and mounted upon a fulcrum wire 13 curved concentrically with the system of type bars, said fulcrum wire being mounted in a fixeango segment 14', having vertical slots 15] for the bell cranks, which .are arranged'vertically in s'aid slots, and are of substantially uniform si'zeflShort forwardly extending arms'16 of said bell cranks are connected by Q5 pendent yielding links Bto 'a' system-of key levers 17 of the second order, said levers being provided at' their forward ends with keys 18 and extending horizontally and rearwardly or-from front to reanof- 7. 0

cranks, and being mounted at their rear ends upon a transverse fulcrum ,rod- 19. The links B maystand vertically and extend in asingle plane across themachinej thoseat 7 5 the middle of the system being shortest, and their-lengths gradually increasing,-:to compensate or the increased elevation"- of. the curved system of bell 'cranks, and the longestlinks. being 'at the sides-of the-[system Each of the links comprises.upperand lower stem;1p0rtions 20 and 21, conneetedbya for:. ward y projectin elongated loop portion 0, the upper an lower armswhereof are the, machine beneath the type bars and bell designated as 22land 23. Preferably each 35 complete link is bent-u from a si le-l n of Wirefiwhiqh y g tempered.

The object of introducing t 'e loop is to render the'link extensible and also resilient, .so' that when the key is given a' sharp" blow, so the, link may stretch or. elongate and thereby cushionthe touch and prevent manner; ring of the finger ofdthe, operator. By making the-parts of proper strength and" proportions, the spring loop may recover its normal form during the printing stroke; thereby accelerating thelmot'e'ment of the type bar and improvingi the t pe-impre'se ent cus loning the d at the termina-ri o the ey the pivots {oiarrest of the operatorfs tion of i thel down stro a. oxtendbene KS 'rovided for i onsng osaioa pa universal bar my;

yield britIlitt-le if any at the depression at I up to print.

be operated by short third arms or projections 26 dependin from the bell cranks A, and by means of suitable connections, a fragment whereof is'shown at. 27, may control the letter-feeding[movementsjofthe platen carriage.

Iu'operation, a key 18 is depressed, and by means of the lever 17 the link 13 is pulled down, vibrating the bell. crank-A, and through the link 11 thrusting the type bar Upon relief 'of the key from pressure, the parts are returned to normal position by the spring :24. During "the:

down stroke of the key, the linlcBneed not yield unless the key is struck a sharp blow; and the extent of its yielding action may beregulated by devices now to be described, so that the extra yielding action of the key under a sharp blo'w may be increased or 'reduced, according 'to the preference of the operator.

Each "of the loops C is provided with a slide-clasp D, preferably. in the form of a yoke or fork, the opposite members"'28 and 29 whereofcmbrace the loop. By adjusting- .the clasp along the loop, a greater orless ex tent thereof is enabled to yield atthe printing stroke, and the' key-touch is varied ac-, cordingly. For convenience 'of adjustment, the slideclaspsD are formed upon the ends- 'of idle links 30, all of which. are pivoted'at" their forward ends to a transverse horizon? 'tal rod 31, by a forward or 'backwardmove ment Whereofall of the idle links and'clasp's may. be adjusted simultaneously, and the touch of all the keys affected. For effectingthis movement, the rod ma upon the upper .ends of opposite rock-arms 32, fixed upon a rock-shaft 33 parallel with the rod' 31 and journaled at 'itsen'ds -in thesidewalls of the base 1'. One of the arms 32 may be provided with'ra handIeZMfPanda friction washer'35 maybe laced-between the rock-arm andthe'side-wa l, 'forretainin 3 the hinged frame-in any po'siti'onito which it I is adjusted. .By thrusting the'han'dleor' finger-piece 34'to the rear,; as at Fig. -1, the clasps D... are adjusted close tothestem's of the links B, land-the latter are-permitted to the keys, and hence the gkeytouch is rendered resistingor hard. If, on thew-contrary,

said handle 34 ispulled forward, as at Fig. 2, theclasps'are slidden toa-the forward por-.

tions of the loops-C, leaving 'each arm of the latter free to yield,--so that when-the keysare given hardstrokes the links B mav elongate,

. thus cushioning-the-key touch, or giving it an extra-yielding action. It will" stood that-during the movements of the common support 33. The response of the underlinks B, the links 30 vibrate idly u' pon 'their mechanism. may be made 'very prompt b'y puttin sufficient tension-u on the springs 24 an 'the-usual-nniver'salarspring -(not.

- be-mounted touch harsh, inasmuch as such adjustment does not aifect the yielding action of the strength, and so jn'oportioning the connections from .the keys to the type barsthat the normal dip of the keys is slight, the key touch'maybe reiideredimich stiffer than is usually practicable, and may also, at the pleasure of theoper'ator, be rendered softer someintermediate point, without the necessity of altering the tension of the usual keyversal-bar sprin I It Wlll beobserved thatoiie of the members connecting the key to the type is to the general direction of the member, so that during the actuation of the type said member may yield, and thereby cushion the key touch; thatin this instance'said member yieldsin the direction of its length; that preferably the yielding construction lies between the ends of said-member, and is prefation and arrangement may be resorted to within the scope of my invention; and portions of my improvements may be used Without others.

Certain features heroin shown are claimed 'in my pending application'No. 112,030, filed June 17,1902.

by Letters Patent, is as follows;

nation with a type and akcy of a member transmitting movement from the key to the type, said member being formed with a loop, such that during the actuation of the type said member may yield-, andthereby cushion the key touch and means for adjusting the yielding action of said loop. 2. In a typewriting machine, the combiinter'- -vening'*link,"said'link being formed with a loop transverse to its length, and said loop er its length during, the actuation of the type bar by the key lever and means for adjusting the yielding action of, said loop.

nation ofa 'systclu'of types,.a system of keys,an intermediate'systcm of links, each .SllOWIl), without however rendcring the links B. By making the latter of suitable than usually practicable, or else adjusted to lever returning-spring (as or thc-uni-' "What I claim as new, and desire to secure permitting the link toyield in the direction formed with a loop extending transversely erablyin the form of an arm consisting of that the function of 1. In a typewriting machine, the combination with a type banand a key lever ofan 3. In a typev'vritingfmachine, the combi- V y 45 a system of intervening members provi ed having ayielding construction between its ends, and: a single means common to said links and adjustable at will forvarying the yielding action; of said links.

"4:111 a typ'ewriting machine, the combination of att'ype, afkey, an intervening member provided with a yielding"transversearm through which-movement may be transmitted from the key to theftype, and a member I carried by "said yielding arm and; adjustable therealongfor' regulatingits yielding act-ion.

, 5. In a typewriting. mach1ne,"'the combination of a'type bar,a key,an intervening link ha'vingfayielding transverse arm, and

- means ad stable upon said arm for regnlatin'g its yielding action. I

, yielding action thereof.

ykeys of a system of members transmitting- 6. In a typewriting machine, the combination of a type, a key, a link which transmits movement'from Sfild key to'said type said link havin a loop construction, and a evice movableong said loop for regulating the 7. In a typewrit-ing machine, the combinetionofa type, a key, anintervening movementtransmitting member, said member having arms whereof at least one is yielding', and a device movable along said arms, to engage both of them at d'ifi'erent points, for regulating their relative yielding movement:-

j p Q v 8. In a typewriting machine, the combination with a system of types and a system of mover'nent'from the keys to the types, each of said members being "formed with aqloop,

and means for regulating the'yielding action of said loops.

9'.' In a. typewritin machine, the combination with a system 0 type bars and a system of key; levers .of a system of intervening links, each link being formed "with, a loop transverse to its length, and means for regulating the yielding action of said loops.

10; In a typewriting machine, the coinbi nation of a system of types, a system of ke s,

with yielding looped arms through which movement may be transmitted from the keys,

to the types, and means for regulating the yieldin action of all of, said arms simul- 11. In a typewriting-machine,"the combination of a system of types, a system of keys,

a system of interveninginembersprovided wit 1 yielding arms through which movement may betransmitted from the'keys' to the 'types, 1nembers carried by said yielding arms, and means for. adjusting said members simultaneously upon' said-arms so as toladjust the yielding'a-ction ofsaid arms.

12. In a :typewriting' machine,the combination of atype system, a system of keys, intervening links having yielding arms, de-

vices adjustable upon said terms forjregw lat-ing their yielding action," and: a; fin'ger piece oonnectedto means for adjusting said regulating devices. 13. In a typewriting machine, thercombination of a system oftypes, a system of keys links for transmitting movementfrom sai 7 keys to 'said' types, each link having a loop construction, 'devices engaging. said loopsf or regulating their yielding action, and a-mem- 'ber'common' to said regulating'devices, for adjusting them simultaneously. v

' '75 14'. In a typewriting machine, the combinatibn of a series of types, a series of keys,

interveningmovementrtransmittin members each. having between 1 it's en a arms whereof at least one is yielding, and asingle device having; a connection with all of'said 'arms for regulating their relative yielding movement and thereby adjustingthe touch of all of the keys 'simultaneously."

15. In a typewriting machine, the combis5 nation ofa type, a key, anintervening mem ber provided with a yielding construction,

an idle link connectedtosa-id intervening member and adapted to stifienthe same, and means for ad usting said idlelink along mem r.

16. "In a-typevvriting machine,'thefcombi nation of a type, a key, an intervenir'i'g mem-' the iellding portion of said intervening ber provided with a yielding arm through 9'5 which movement may be-transinitt'ed from,

the key to the type, an idle link connected at one end to said yielding arm in a 'manner to stiffen the latter, and means connected 'to 4 the other end of'said idle link for adjusting .it along said yielding arm.

17. In a typewriting machine,".the combi -Y V nation of'a t pe, a'key, an intervening member provide with parallel'portions whereof at least one is yielding, a device-connecting said parallel portions and adapted to stiffen said-yielding portion, and means for adjust-.

ing said'connecting device along said. paral- I -lel portions.

v 18. In atypewriting iiiachine, the combi- 11o nation of a type, a key", an intervening mem j 'a'brac e attached to said'arm, und-'meansfor I adjusting. the last-named'jlinkI along said 126 am; s

' 20. In a typeyvrit iiigjmachinwthe combi- I nation'ofa type, a key, alink which transf mits movementfrom'said key to said ty e,

said link having-1a loop ooi struction',an i e; 130

I link having at one end a bracefor cooperating with. said loop, and adjustable means supporting the other end of said idle link.

In atypewriting machine, the combination of asystem of types, a system of keys,

' an intermediate-system of links, each link having a yielding, construction between its ends, braces forthe yielding portions of said links, a system of idle links connected to said braces, a rod wliereon said idle links are pivoted,'and means for adjusting saidrod.

22. In a typewriting machine, the combination with a system of types and a system of keys, of a system of members transmittiiig'inovement from the keys to the types,

each of said members beingformed with a loop, idle linkshaving braces which are articulated to said loops,- a rod connected to links for' transmitting movement froinsaid keys to said types, eachlink having .a loop construction, idle links formed with clasps engaging said loops, a rod whereon said idle links are pivoted, a rocking .franie whereon said rod is mounted, and a fingerpiece connccted to said rocking frame.

' tally extending loop, horizontal idle linksjformed with clasps-enga'ging said loops, a transverse horizontal rod wliereon said dle 25. In a typewriting"machine, the combination of' a system of types, a system of keys, a system of key levers, links extending up from said key evers and connected to said type bars, each link having a horizonlinks. arepivoted, a horizontal transverse rock shaft having upwardly extending arms ,whereon said rod is mounted, a finger piece or rocking said-arms and shaft, and means for detaining'saidarms and shaft .in their "adjusted positions.

r 26; In a typcwriting' machine, the combination of a system of rearwardly striking type bars, a series of hell cranks pivoted in a curve in rear of said type" bars, saidbell cranks being of substantially uniform size and consisting of forwardly extending arms and n \\-'ardly extending arms, a segment having substantially 'VOl'iZlCfll slots whereinsaid bell cranks are pivoted, links connecting said typc'bars to said upwardly extending' arms, yielding-Jinks,dcpcnding from said forwardly extending arms, and key-bearing lovers of' (he second order to which the lower, ends of said depending links are connected, and aisingle member for adjusting the yielding action of all the links simultaneously.

27. The combinat-ionof atype-bar, alever, w

an intervening link having between its ends a yielding construction, and means for adjusting the yielding action of the link; saidadjusting means comprising a fingeriece stationary during the movement of the ink,

and having a part connected to the link to move therewith. 7

28. The combination of a type-bar, a key,

an intervenin link, and adjusting means comprising a finger-piece stationary during the movement of said link, and having a part connected to said link between its ends to move therewith.-

2-9. The combination with a-platen, of a series of type actions, each comprising a key, a lever, a.type b'ar, two links intervening between said lever and type-bar, one of said links being formed with a. yieldin loo 'a'nd a lever connected, between said in s.

.30. The combination with a series of type actions, each comprising a key, a series of links, one of the links having a yielding loop construction, and a lever connected 'between the links, of adjusting means for the yielding links.

31. The combination with a series of t e- 'bars, of .a series of keys, yielding looped evices connecting the keys to the type-bars,

and a stationary adjustable inember having idle links extending to all of the yielding devices, for adjusting the tension thereof.

32. In a typewriting machine, the combination with rearwardly striking type bars and key-levers extendin rearwardly from the keyboard beneath tie type-bars, links extending up' from the key-levers, bellcranks'in rear of the-type-bars and having short forwardly extending arms attached to said links,and long 11 standin arms, links extending forwardly rom-sai upstanding arms and attached to the type-bars below their pivots said upwardly extending links having yielding constructions, and means being provided for adjusting the extent to which they may yield. r l- 33, In a typewritin machine, the combination with rearwardly striking't pe bars and key-levers extendingXrearwar ly from the keyboard beneath the type-bars, links extending up 'from the key-levers, bell- -cranks in rear of the type-bars and havin short forwardly extending arms attache to said links, and long upstanding arms,

ill

links extending forwardly front-,sizid 'upstanding arms and attached-to the ty e-bars below their pivots; said upwardly ext e idin links having yielding constructions," an

means beingprovided for adjusting th'e" extent.;to which they 'may yield; said bellcrankshaving short pendent arms which op-' crate/a. uniwrsaklmr of a carriage feeding mechanism 'inde x-mh-ntly of the extent of vleldnlg' action of said links.

34. ]n a t \;'pe \'riting ,niachino, the combination with type-bars, kev-levew, and intervening links, each provided will! a yielding loop; of means for rex ulating the \'ieldin'gv act-ion of the loops. I In a t \'pe\\'1i'itin; mm-hine. the combination with t 'pc-hara aml l e \'le\'er-;, of intervening links vavh u'o\'id -d llttWLOll itsvends \\;'il'li':i-' \'l ldmg loop, provision lacing .made for mechalm-ally lnn1tin; the extent of -'l(.lllllj of the loop. 7

36. 111 a typewrnmg machine, the combination with a t \-'pc-bar, a key lever, and an said links and mounted in a segment in rear m the type l)zl1'$,.linl s depending from said bull (ranks, key-bearing levers connected to the lo'we ends-.of the depending links, and: a H ill\'l'. .ll har operated by a tlnrd arm on (nu-h of said bell cranks.

BUR-NHAM C. \Vitnehsesz War. II. Die LACY,

M. C(HENJLWER.

TICK EY, 

